It is a term that really pushes my buttons! In my understanding, when it has been used with me, my T has meant that I am not open to what ever it is they are trying to do with me in therapy. There have been very few times I have been resistant and I know when I am doing it. Often when I get called resistant I don't understand/need more time to let it sink in or they have wanted my healing to happen more quickly than it was. Those are just my experiences and I don't want to try and mind read your therapist so please talk to them about it.